Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Patent
1994-12-20
1997-04-08
Clark, W. Robinson H.
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
428143, 528298, C08G 6302, C08G 6318
Patent
active
056186096
ABSTRACT:
A biaxially oriented film of a polyethylene-2,6-naphthalenedicarboxylate, which (1) has a Young's modulus of at least 600 kg/mm.sup.2 in the transverse direction and a Young's modulus of at least 500 kg/mm.sup.2 in the longitudinal direction, the Young's modulus in the transverse direction being greater than the Young's modulus in the longitudinal direction, (2) satisfies the following relationships between an elongation S.sub.T (%) in the transverse direction per kg/mm.sup.2 of a load at 120.degree. C. and the Young's modulus Y.sub.T (kg/mm.sup.2) in the transverse direction,
REFERENCES:
patent: 4720412 (1988-01-01), Katoh et al.
patent: 5312893 (1994-05-01), Hamano et al.
patent: 5352534 (1994-10-01), Hamano et al.
patent: 5380577 (1995-01-01), Hamano et al.
Chujo Takao
Hamano Hisashi
Nishiyama Masanori
Clark W. Robinson H.
Teijin Limited
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